Senior Mainframe Dev: Unisys OS2200, COBOL & ECL

AG Consulting Partners, Inc.; United States; Remote; USD 115,000 - 145,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Paid time off

401K matching

Education reimbursement

Community and philanthropic events

Flexible career paths

Job summary

AG Consulting Partners, Inc. is seeking an experienced Mainframe Developer with deep Unisys OS2200 expertise to maintain and modernize critical enterprise applications and enable integration with Workday HCM, Payroll, and Finance.

You will analyze, design, develop, test, document, and support batch and online processing, collaborating with architects, Analysts, and stakeholders. The role requires 5+ years in mainframe environments, hands-on COBOL ANSI 74, ECL, SSG, DMS, and TIP, plus a proven

Qualifications

• 5+ years of experience developing and supporting enterprise applications in a mainframe environment.
• Experience with Unisys OS2200, COBOL ANSI 74, ECL, SSG, DMS, and TIP.
• Strong analytical and troubleshooting skills; ability to resolve complex issues.
• Excellent verbal and written communication; ability to document technical work clearly.
• Experience working in cross-functional teams and collaborating with stakeholders.

Responsibilities

• Analyze, maintain, enhance, and support mission-critical Unisys OS2200 applications.
• Develop, modify, troubleshoot, and optimize COBOL ANSI 74 code.
• Design, develop, and maintain ECL job streams and batch processing.
• Support and maintain DMS databases and TIP online processing.
• Collaborate with architects, analysts, and infrastructure teams to enable data exchange with Workday.
• Perform testing, root-cause analysis, and documentation.
• Lead remediation, modernization, or migration initiatives.
• Support deployments, release management, and post-implementation validation.

Skills

Analytical problem-solving

Troubleshooting skills

Verbal communication

Written communication

Technical leadership

Education

Bachelor's degree in Computer Science, Information Systems, Engineering, or related field

Tools

Unisys OS2200

COBOL ANSI 74

ECL (Executive Control Language)

SSG

DMS (Data Management System)

TIP (Transaction Interface Package)

Job description

AG Consulting Partners, Inc. is seeking an experienced Mainframe Developer with deep Unisys OS2200 expertise to maintain and modernize critical enterprise applications and enable integration with Workday HCM, Payroll, and Finance.

You will analyze, design, develop, test, document, and support batch and online processing, collaborating with architects, Analysts, and stakeholders. The role requires 5+ years in mainframe environments, hands-on COBOL ANSI 74, ECL, SSG, DMS, and TIP, plus a proven